Political Economics: Explaining Economic Policy

What determines the size and form of redistributive programs, the extent and type of public goods provision, the burden of taxation across alternative tax bases, the size of government deficits, and the stance of monetary policy during the course of business and electoral cycles? A large and rapidly growing literature in political economics attempts to answer these questions. But so far there is little consensus on the answers and disagreement on the appropriate mode of analysis. Combining the best of three separate traditions -- the theory of macroeconomic policy, public choice, and rational choice in political science -- Torsten Persson and Guido Tabellini suggest a unified approach to the field. As in…